In most cases, a fire alarm system will not be on its own circuit. Local fire codes often require the smoke detectors to share a lighting or outlet circuit to prevent owners from shutting them off ...

By cleverly patching into the test button on an old smoke detector he created a circuit-trip alarm. One side of each piece of wire is secured to the frame and jam of a window. A paper clip ...

The detector circuit uses a miniature solar cell and ... to detect the small amounts of gamma radiation produced from a smoke alarm americium source, and also registers [Alan]’s other more ...

He is in charge of developing and carrying out testing procedures for a wide variety of home appliances and smart devices including robot vacuums, smoke/CO detectors and air conditioning units.